APHOTOMARINE
An educational resource dedicated mainly to the photography
and diversity of marine life that can be found in coastal waters
and intertidal areas of Great Britain and Ireland by David Fenwick.
Berthella plumula (Montagu, 1803) - Yellow-plumed or Side-gilled sea slug
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Yellow-plumed sea slug
Berthella plumula
- dorsal and lateral view 1
Berthella plumula
- dorsal and lateral view 1
Yellow-plumed sea slug
Berthella plumula
- juvenile dorsal view 1
Yellow-plumed sea slug
Berthella plumula
- juvenile dorsal view 2
Yellow-plumed sea slug
Berthella plumula
- juvenile lateral view 1
Yellow-plumed sea slug
Berthella plumula
- juvenile dorsal anterior 1
The juvenile specimen above was found in a small sample of coralline algae at Marra Pool, Mount Batten, Plymouth, Devon, 02.02.22.
Yellow-plumed sea slug
Berthella plumula
- mating specimens 1
Yellow-plumed sea slug
Berthella plumula
- mating specimens 2
Mating specimens found under rocks on the middleshore at Chimney Rocks, Penzance, Cornwall, 31.07.15 and 09.05.17.
Yellow-plumed sea slug
Berthella plumula
- juvenile dorsal view 3
Yellow-plumed sea slug
Berthella plumula
- juvenile dorsal view 4
Specimens above were found under rocks on the shore south of Mousehole, Cornwall. 07.04.16.
Yellow-plumed sea slug
Berthella plumula
- egg laying 1
Yellow-plumed sea slug
Berthella plumula
- egg laying 2
Yellow-plumed sea slug
Berthella plumula
- adult dorsal view 1
Yellow-plumed sea slug
Berthella plumula
- egg mass 1
Yellow-plumed sea slug
Berthella plumula
- eggs 1
Yellow-plumed sea slug
Berthella plumula
- in rockpool 1
Yellow-plumed sea slug
Berthella plumula
- in rockpool 2
Yellow-plumed sea slug
Berthella plumula
- out of water 1
Yellow-plumed sea slug
Berthella plumula
- in rockpool close-up 1
Yellow-plumed sea slug
Berthella plumula
- pair under rock 1
Yellow-plumed sea slug
Berthella plumula
- damaged / lacking mantle 1
Images of the species were taken at various locations across the south coast of Devon and Cornwall, sites include Spit Point, Par, near St. Austell, Cornwall; Marazion, Cornwall; and at Chimney Rocks, Penzance, Cornwall.
Generally speaking this is one of the most common sea slugs to be found in the region.
The main objective of this website is in furthering environmental awareness and education through the medium of photography. To increase awareness and access to the wildlife of the region and help
people find and identify it. Sometimes the difference between species is obvious but many species can only be determined by observing microscopic characteristics that are specific to any one species.